3.5kW ER25 CNC Spindle Kit With Four Ceramic Ball Bearings And 4kW 380V VFD Inverter Water Cooled For Quiet Operation And High Speed Main Bearings Axial Preload Live Spindle Built For Pro Grade CNC Mills And Routers

CNC spindle kit with water cooling and ceramic bearings
✔️ 3.5kW ER25 spindle, 0-18000 rpm, 0.01mm runout, VFD

This pro-grade CNC spindle kit pairs a 3.5 kW ER25 spindle with a 4 kW inverter (VFD) for quiet, high-speed machining on pro mills and routers. It features ceramic bearings and axial preload to boost rigidity and life in metal, wood, and composite work.

✅ Power: 3.5 kW spindle, 4 kW inverter / VFD
✅ Spindle speed: 0-18000 rpm
✅ Collet: ER25, 1-16 mm range (incl. 1/8", 1/4", 1/2")
✅ Runout: <0.01 mm
✅ Bearings: 2x ceramic 7007C P4 DB, 2x 7002C P4 DT
✅ Size: 214 x 82 x 94.5 mm (8.43 x 3.23 x 3.72 in)

💡 What is a CNC spindle kit with ceramic bearings used for? This handy setup is built to deliver high-speed rotation with precise control for engraving, milling, and routing tasks.

• Handy for precise milling, drilling, and engraving on metals and plastics
• Compatible with ER25 collets and standard VFD control for easy power management
• Low-noise operation with axial preload to improve rigidity and surface finish
• Ceramic bearings provide long life in demanding conditions